Paint brush



FIG. 1 is a perspective view of a paint brush of the present invention;

FIG. 2 is a top plan view thereof, the bottom plan view being identical thereto;

FIG. 3 is a left side elevational view thereof, the right side elevational view being identical thereto;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a front elevational view thereof.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a paint brush, as shown and described. 